The colored boxes represent deceased ancestors of missionaries. This is
a genealogical chart.

The white boxes represent living generations, and only missionaries are listed.
It is not a genealogical chart.

Not every member of the generation may still be living, but some are. Therefore,
for living generations, only the generation of the missionary is indicated, not his
parentage.

This means that there is no assumption that someone in the 5th generation,
for example, is a parent to anyone in the 6th generation. The 5th generation person
may not have had children who served missions, and contrariwise the 6th generation
missionary may not have had parents who served. Or the record of the family may
not yet be complete.